I have created an .html signature from within WLM.  However, when applying the signature to outgoing e-mails, the image will not appear.

I followed the instructions as provided by http://windows.microsoft.com/en-US/windows-live/mail-create-signature.

Instead, a blank white box shows up where the image should be -- and when sending the message -- I am warned (paraphrasing) "One or more if the pictures in this message could not be found.  When sending the images will not be included. Are you sure you still want to send?"

Does anyone have a solution to this?  The picture I am using is a .png.  However, I saved the signature file as a .html.